135 



duett of Philippine Forests, Vol. III., p. 222.) Voacuma papuana, K Sell., Xo. 440. 



and 



■ The bark of the tree furnishes a drug u Ditam 

 considered useful in chronic diarrhoea 

 dysentery."— (Bailey, Queensland Flora, 985.) 

 Material collected. — Leaves, flowers, wood, bark. 



Alstonia longiss'nna, K. Br., No. 103. 



A medium sized tree, 6^ feet girth and 70 feet bole. 



Leaves. — Simple, whorled; petiole, £ inch; black\ 

 7 to 12 x 2 to 4^ inches; oblanceolate, tapering 

 to base, acute; midribs and veins thinly pubes- 

 cent below. 



Flowers. 

 Fruit.- 



— Axillary in terminal panicles. 



A pair of long (12 to 20 inches) dehiscent' Hoy a dimorpha, No. 243. 



A small tree branching low down. 



Flowers. — White, heavily scented. 



Fruit. — A bright, orange colour, 3 inches diameter, 



pear-shaped, and two are joined at base. 

 Locality. — Page's Camp, Yeimauri. Common all 



round territory in the lowlands. 

 Date.— May, 1922. 



Materia] collected. — Leaves, flowers. 



ASCLEPIADACEAE. 



Hoya dimorpha, No. 243; Eu-Hoya sp. nov., No. 566. 





follicles, twist up on opening. 



Bark. — Grey, fissured; inner bark yellow-brown; 

 £ inch thick; exudes latex. 



Wood. — Sap undefined, pale yellow or white. 



Eays. — Clear, 200 very fine, white, pretty straight, 

 except when groups of bigger pores cause kinks. 

 Very shallow, fine lines only just visible on 

 quarter. Pores. — Exceedingly minute and 

 crowded, 40,000; evenly scattered, hard to say 

 whether chains of 3, 4, 5, 6, and 7 are septate or 



A climber, attaining 30 to 40 feet. The stem is 



grey-brown, covered with corky pustules; exudes 

 latex. 



Leaves. — Simple, opposite; petiole, £ inch; blade, 

 I| to 7J x i to 2£ inches; lanceolate, acute to 



acuminate; 

 broken. 



fleshy, thick. Exudes latex when 



single, 

 minute as 



Zones occur where the pores arc so 

 to be uncountable with hand lens. 



Flowers. — Axillary pink umbels. 

 Locality. — Hydrographer's. 

 Date. — Flowers in August. 



Material collected. — Leaves. 



These may be more or less porous zones, and are Eu-Hoya sp. nov., No. 566. 



white in colour. Soft tissue. — 4 to 6 fine con- 



tinuous concentric 



rings 



to the inch radius. 



■ 



General. — A close-grained, almost white, timber; 



♦ interlocked. Solution wood; a faint yellow; no 

 precipitate. Cuts hard; 46 lb. per cubic foot. 



Locality. — Vanapa, Veimauri, Buna, Hydro- 

 grapher's, all coastal country, and up foothills to 



2,500 feet. 

 Native names. 



A creeper. 



Leaves. — Exudes white latex. 

 Flowers. — White with pink centres. 

 Locality. — Joangey. 



Date. — December, 1923, 

 Remarks. — Ornamental. 



Material collected. — Leaves, flowers. 



lie 



Ambund (Yalu). 



Qua (Doura), Ewura (Buna), 



Co JN T VOLVU LACEAE. 



•mar 



ks.— Common tree with a range round the Im Pomoea ha/alas Poir,, Xo. 561 



whole of Papua. It is one of the first trees to 



. overtop the growth on the farm lands, and is in 



turn overtopped by the main forest species. 



Material collected- 



Leaves, flowers, fruit, wood. 



Alstonia maclirophylla Wall, Xo. 571. 



A medium sized tree, feet in girth with a bole of 



Flowers, — Mauve salvers. 



Locality. — Kulentufu. 



Date.— November, 1923. 



Remarks. — The common sweet potato. 



Material collected. — Leaves, flowers. 



35 feet, and 70 feet over all unbuttressed ; very Cord 

 cylindrical. 



■ 



Leaves. — Simple whorled; petiole J inch; blade, 5| 

 to 7 x If to 2f inches; venation prominent; obo- 

 vate, mucronate, thin ; exudes latex. 



Elowers. — Terminal, flattened, whorled panicles of 

 white pentamerous flowers. Fragrant, 



Fruit. — Follicle, 20 inches long. Only dry speci- 

 mens without seed picked up on the ground. 



Bark. — \ inch, thick, grey, smooth, except for pus- 

 tules in irregular longitudinal lines; inner bark 



yellow, exudes latex. Solution colourless: no 

 precipitate. 

 Wood. — Sap. — 2 inches, pale yellow; heart a light 



brown. 



Rays. — 250 distinct, straight, pale 1-70 inch deep, 

 showing up as pale specks on the quarter. Pores. 

 '. — 21,400; radially septate, 2 to 4; somewhat 

 crooked between rays, so that septum sometimes 

 diagonal. Soft tissue. — Absent. General. — A 

 pale wood, and cuts sard, shows little or no grain, 

 and weights 51 lb. to the cubic foot. Solution 

 colourless, no precipitate. 



Locality. — Joangey. 



Date.— December, 1923. 



Native name. — Qweta (Joangey). 



Material collected. — Leaves, flowers, dry seed 

 vessels, wood, bark. 



BoRAOlXACEAE. 



ia subcordata. No, 439; Cordia sp., No. 63; 



Xo. 02,s ; Zoellera procumbens 



Cordia 



myxa, 

 Warb., No. 506. 



Cordia myxa Linn, No. 628. 



A large tree with a girth of 8 feet and bole of 60 



feet, and attaining 80 feet over all. 

 Leaves. — Simple alternate; petiole, 1 inch; blade, 



2 to 3 x 2 to 3 inches; cordate, obtuse; coria- 

 ceous, thin. 



Flowers. — Axillary panicles of white pentamerous 

 flowers. 



Bark. — f inch, grey, fibrous, longitudinally lined, 



bark 



somewhat scaly on upper portion; inner 

 white. Solution colourless. 



No precipitate. 

 Wood. — Yellow; sap undefined. Rays. — 70 to 90 

 straight, brown, distinct; l-20th to l-15th inch, 

 conspicuous on quarter owing to brown colour. 

 Pores.— 900 to 1,600 single and radially septate 

 2; show up as brown grooves on the longitudinal 



sections. Soft tissue. — Conspicuous, 80 lines to 

 the inch, considerably thicker than rays; broken 



by rays, surrounds pores; shows upon hack as 



wavy brown hands. General. — k pale wood, 



with pretty hrown grain both on quarter and on 



hack; smells like cedar. Solution pale brown, 

 grey-brown precipitate. 



Locality. — Lea. 



